Bead-core-buffing machine



Oef. 27, 1925.

BEAD CORE'v-BUEFING MACHINE '2 Sheets--She 1 Filed Nov.. 1o, 192A Jsep/z EBerm'uZi", Malcolm S. Guile, @21, 4%4 MVM- ttoz 14943@ Oct. 27 192.5

J. PERRAULT ET. AL

V BEAD CORE BUFFING MACHINE Filed Nov. 1o. 1924 2' Sheets-Sheet 2 K5 Jbseph Elfen/'au Zt,

Malcolm 4S', Caa,

A ttoulwwg Patented Oct.. 27, 1925,

UNITEDv STATES PATENT OFFICE.

JOSEPH E. PERRAULT AND MALCOLM S. GATE, OF WATERTOWN, MASSACHUSETTS, AS- SIGNORS T0 '.I-IOODA RUBBER COMPANY, OF WATERTOWN, MASSACHUSETTS, A VCO'R- PORATION OF MASSACHUSETTS.

BEAD-CORE-BUFFING MACHINE.

Application led November'10,'1924. Serial No, 748,896.

To all whom 'it may concern:

Be it known that we, Jo'sErHE. PERRAULTl and MALCOLM S. GATE, citizens of the United States, and residents of lVatertown, in the 'county of Middlesex and State of Massachusetts, have invented certain new and useful Improvements in Bead-Core-Bufiing Llachines, of which the following is a specification.

Our said invention relates to a machine- Y economical, and efficient apparatus vcapable main drive shaft 4 journaled in suitable ,l

of being' easily manipulated.

With these and other objects in view, the invention includes the novel features of construction and arrangement and combination of parts hereinafter defined by the appended claims.

-An embodiment of our invention is illustrated in the accompanying drawings, in *which- Figure 1 is an end elevation of a butling machine constructed in accordance with our invention. Fig. 2 is a front elevation.

Fig 3 is an elevation looking in the opposite direction from Fig. l.

Figs'. 4, -5, and 6 are partial elevations corresponding to Figs. 1, 2, and 3, respectively, but showing the parts in feed and buiiing position.

Referring by reference characters to'these drawings, the numeral 1 designates driving means such as a belt operated from any suitable I source of power `(not shown) which passes around the drive pulley 3' fast on l.the

spaced bearings 6 in the main frame of the machine. 5 designates va hollow swinging brush-carrying arm having one end journaled or pivotally mounted on said shaft between said bearings, and having journaled 'in its free end a shaft 7 carrying a brush 8 which, by the swinging movement of said arm, is moved towards and from the bead ring, which is indicated in positionin the machine at'11. 'Shaft 7 is driven fromthe main shaft 4 through suitable gearing including the spur gear 9a fast .onthe shaft 4 meshing with spur gear 9 carried by a countershaft, which in turn, through chain and sprocket connections indicate-d at l0, drives thebrush shaft 7, whereby the said brush shaft is rotatedina direction. reverse to that. of the drive shaft 4, the gearing described being housed within the hollow arm.

A second brush 2 is carried by, and fast on the drive shaft 4, and lies within the ring and in opposition to brush 8, the two brushes being arranged to lact against the bead from opposite sides, and being normally out of contact therewith, as indicated in Figs. 1 to 3, so as to have vno Iaction thereon, notwithstanding the fact that they are continuously driven.

The bead 'ring is supported atpoints located on opposite sides ofthe brushesv and a material distance therefrom, as shown clearly in Fig. 2, and hereinafter more particularly described,the arrangement being such that when the brush 8 is swung down into Contact with the ring 11, and the latter deflected from its true circle and against the brush 2, as shown in Fig. 5, it is abraded from opposite sides by the coaction of the brushes. The brushes are preferably of the wire bristle type, and are most effective when. driven -so that their peripheries act on the ring in a'direction opposed to the direction of travel of the latter, as indicated by the arrows in Fig. 5.

The bead ring'i-ssupported in proper relation to the brushes, and drawn there .be-

tween by the coacting rollers 22 and 19 and the arm 46 carrying bead ring guides 47 and 50, the manner of operating which will nowv be described. -Y ,I

1 2 is the feed actuating shaft suitably journaled in the machine frame'and driven from shaft 4 at a. materiallyl reduced speed by intermediate driving mechanism such as belt drive 13 to shaft 13, worm gear 14 I connecting shafts 13a and 18, which latter,

through chain and'sprocket drive 15 and gear drive 16-17 operates shaft 12. VVorm pressed against the feed wheel by the presser roller 22, which is accomplished by the fol` lowing described mechanism...

Feed shaft v12 rotates within a sleeve 23 (-Fig. 2) which carries a cam 24 at one end,l

anda pawl at the other. l This pawl is fulcrumed at 25b on a fixed pivot and coacts with' aratchet wheel 26 fast on shaft 12 and constitutes a'clutchy for clutching the sleeve Cil to thevshaft, both revolving together' when the ratchet wheel vis engaged by the shaft, the sleeve remaining otherwise stationary and likewise the cam', and as the cam a'ctuates or controls the' feed'mechanism in themanner hereinafter described, -the feed is' controlled by throwing the pawl inA or out. Normally the pawl is held out of en- 'gagement .by a latch-12T fulcrume'd at 2Ta and engaging a'projectio'n 25 on pawl 25, the pawl being so arranged that when released from the latch it will-'be caused to automatically lengage the' ratchet wheel by gravity.

' For actuatingv the latch to release' the Vpawl, I yprovide a hand lever 28 fulcrumed at 28a and connected with the latch by link 29. When the operator presses down on the conveniently positioned handle 287, latch 27 is forced downv until its end rides past or slips over the lug 25a, whereon the pawl engages the ratchet wheel which couples the sleeve to the shaft and rotates the cam. The

.release of r`thehandle by the operator allows the latch tombe returned topawl engaging position by the action of spring-27b, its return movement being limited by stop 27?.

Thus the depression of 4handle 28b clutches .the pawl is again actuated by the latch 27.

Cam 24 bears against an anti-frictionv roller 33- carried by one end of a lever 30 fast on shaft 31 journaled in suitable bearr*v The opposite ings in the machine fra'me. i end of lever 30 vslidably engages, as, by `a forked push connection, the lower end of? a link 34, which constitutes'a push rod, and

' which is connected at its upperend to 'an arm 35 fast on shaft 38. This shaft carries fast thereon a bell crank lever, one arm`36 of which extends approximately horizontal- 4ly 'and is provided with a weight 37, while the other arm 36a is connected to slide 'rod 39 mounted to reciprocate in forked bracket 39a; Journaled on the outerA end of rod 39 is a beveled or conical roller 22 which coacts with drive roller 19, driven Jthrough 'the `v of arm 5.

lbevel gearing 21 inthe manner hereinbefore described. Roller 19 preferably has a serrated periphery to assist its frictional engagement with the inner surface of the bead ring, and it is provided with an annular fiange 192l serving a seat for the ring.

When rod 39 is projected by the bell crank, which occurs when the machine is at rest, the-inclined or conical surface .of roller 22 is removed from the bead ring so as to render the feed inactive and also to provide ample spaceibetween the rollers for the ready insertion and removal of the bead.

ring, while when the rod is released the action of the-Weight 37 draws the roller 22 down into contact with the bead ring and forces the latter into contact with the sery rated feed/ wheel.

Shaft 31 also has fast thereon anarm 32.`

(Fig. '3) to which is attached a sprocket chain '40 which passesI upward over a sprocket wheel 43 and has its `free end subj ected to the pull of tension spring 42, connected to a fixed bracket. This shaft 44, through bevel gears 45, actuates swinging arm 46 pivotally mounted on bracket 46, which arm carries spacedbeadring guides 47 and 50, preferably in the form of rollers, the roller 47 having a base flange 47a to underlie and support the bead ring. Vhen arm 32v is allowed to move upward by the action of the cam,vthe pull of the spring 42 on the chain rotates shaft 44 in the direc- 'tion to swing arm 46 downward (towards its under surface into contact with'brush 2. y

Lever 32 has also attached thereto a vsprocket chain 41 which passes over a sprocket wheel 48vfast on the hub portion weight of the arm 5 and parts carriedv thereby, causes thebrush .8 to descend from the position shownin Fig. 2 to that shown in Fig. From the foregoing, it will appear that when the machine is in its inactive condition,

vthe brushes and feed and guide rollers arc ,separated so that a bead ring can be readily Iv'placed therebetween, the placing of the bead and its being retained in position being further facilitated and insured by the fact that the various parts are so arranged and disposed thatthe bead ring is supported in an inclined plane, as shown, the lower portion p ieu p l When the lever 32 is permitted I 'to swing upwardly, as above described, the

llO

bead ring, even if the latter is lin place.

Shaft 12 isalso being continuously driven, but 4is unclutched from sleeve 28. Depression ofhand lever 28 now releases pawl 25 and allows the saine to engage the ratchet wheel 26 and clutch the sleeve to the shaft, which thereupon rotates the cam through vone complete rotation at the end of which' time the pawl isA tripped or withdrawn by the latch, as above described, and the cani stopped. The cam is so shaped that as soon as it starts to rotate, -roller 33 rides off the high part of the cam (Fig. l) onto the low part (Fig. 4), which allows the rollers 22 and 47, and brush 8 to be moved by the spring or gravity lmeans described, into position to act on the bead ring, as hereinbefore described, and the extent of the low part of the cam is such that a complete rotation of the bead ring is effected and its entire surface acted on or abraded' by the brushes, .whereon the machine automatically stops with the parts heldin open position byA the high part of the cam, readyfor the removal of the buffed or abraded bead ring,

and its replacement by a fresh one.

vHaving thus described our invention, what we claim is l. Apparatus of the class described coinp'isiug a pair of normally separated buiiing elements, a pair of normally spaced bead core feed wheels on one side thereof, bead core guiding means on the other side of said elements, and means for simultaneously causing said feed wheels to approach eachother and said butiing elements to act onthe bead core.

2. Apparatus of the class described comprising a buffing element journaled to rotate about a fixed axis, a coacting bufting elenient movable towards and from the horizontal plane'of said fixed axis, feed-ing means on one side of said first named bui'ing element comprising a pair of normally separated rollers. a presser roller onthe opposite side of said first named buiiing element for pressing the bead towards thesame, and means for simultaneously moving said feed rollers towards each other and said presser roller towardssaid first named bufling ele" nieiit, and also moving the movable bufiing element towards the horizontal plane of the.

fixed axis of the first named bufting element. i 3. Apparatus for the purpose described comprising a rotary buiiing element Jouriialed to rotate about a fixed axis, an arm i mounted to swing about said axis, a bufling' element rotatably mounted in said arm,

means for supporting abead between saidv elements and progressivelyfeeding it relative thereto, and means forswinging said.

same, a buiiing element located within theath of travel of said ring and normally out of contact therewith, andv a buffing element located outside the rinff'- and movablein a path which crosses the line of travel of said ring.

comprising means for supporting an endless bead ring and progressively rotating thc same, a buiing element rotatable about an axis lying within the path of the ring, an arm mounted to swing about said axis with means for operating it, a rotary buiiing element journaled -on said armoutside said fring, means for continuouslydriving said bufting elements, andl means for swinging i said arm... Y

6. Apparatus for the purpose described,

comprising a lbuiiing element rotatable about afixed axis, an armmounted tov swing about said axis, a bufling element rotatably car-v ried by said arm, means for supporting a bead ring with aportion lying between said bufling elements, said means including a pair of spaced feed rolls, meansfor continuously driving said buffing elements and one of .said feed rolls, means for moving one of said feed rolls towards the other, and means for swinging said brush-carrying arm.

7. Apparatus of the class ydescribed coinprising continuously driven buil-ing means, and means for supporting and feeding a bead ring relative thereto, including ineans for detlectingithe bead ring from its posiltion of rest into contact with said bufting position relative thereto, .but out of contact' 5. Apparatus for the lpurpose described,

therewith, said means including feeding meansat one side of said buiiing element, and a presser roller on the opposite side located outside of said ring, and movable towards and from the periphery thereof.

10. Apparatus of the class described, comprising a rotatable bufiing element, means for supporting a bead ring in encircling position relative thereto, but out of contact therewith, said means .including feeding means at one side of said buiing element, and a swinging arm'on the opposite side, .having spaced bead ring guides for engaging opposite sides of vthe bead'.

11. In apparatusof the Aclass described,

'the combination with ,a pair of normally spaced apart buffing elements and means whereby they may be caused to act on op lthe combination with -posite sides of a traveling bead, of beadl feeding means cooperating therewith com-y prising a continuously driven feed roller and an idle rollerA spaced therefromv and movable to'vvardsa'nd from the same.

12.'In"apparatus of the class described,

a pair of normallyr spaced apart4 bufiing elements and means whereby they may be caused to act lon opposite sides of a traveling bead, of bead feeding means cooperating therewith comprising a' continuously driven feed roller' having anl annular `bead supporting base flange and an idle roller of approximately conical lform journaled on an axis parallel" to said feed rollen and movable in the direction of its axis. i

13. Apparatus for the purpose described,l comprising means for supporting a bead L' ring in inclined position including spaced feed Wheels and spaced guides, rotary buil'- ing devices arranged on opposite sides of said ring intermediate df saidfeed wheels and guides, means for continuously driving said buiiing elements and one of said feed Wheels, and means for simultaneously mov-..

ing one of said feedvwheels towards the other to grip the. bead, moving said guides towardsthe axis-'of the ring and swinging the puffing wheel carrying arm.

14. Apparatus'for the, purpose described; comprising bead supporting means including normally separated feed rollers, con-,

tinuously'driven buiiing means arranged to act on 'opposite sides of the bead but nor-y mally out of contact therewith, yielding means for causing said feed rollers 'to grip the bead and the buifing means .to contact with the bead. j Y

15. Apparatus for the purpose described, comprising bead ringsupporting means in- `cluding. normally separated'feed rollers one of -which is continuously driven, continuously' driven bniing Wheels arranged to act on opposite sides of the bead 'and normally spaced therefrom, yielding means tending to cause said feed rollers to feed the' bead and the bufng Wheels to act` thereon, and cam controlled means for ren- .;dering said yielding means inactive.

'M16'. In apparatusf the class described, means for supporting and rotating an endless ring, including'feed Wheels for engaging said ring and progressively feeding `the same, at least one of which is continuously driven, continuously driven builing Wheels positioned to act on saidl ring, but nor- 

